| Appletree Day Nurseries (Wales) Limited | Other services | 2004 |
| Attic 2 (Wales) Ltd | Professional & scientific | 1998 |
| Beaufort Gardens Owners Company Limited | Households | 2021 |
| Bellcom UK Limited | Information & communication | 2005 |
| BY RAE Florence Ltd | Manufacturing | 2012 |
| CNH Development Limited | Professional & scientific | 2012 |
| Core Ambition Tutors Ltd | Education | 2024 |
| Eden Magor Ltd | Other services | 2013 |
| Fit SIX Training Ltd | Arts & recreation | 2021 |
| Green Borough Properties Limited | Real estate | 2020 |
| Hutchison Communication Systems Limited | Information & communication | 1997 |
| Indigo Group Holdings Limited | Financial services | 2016 |
| Indigo Telecom Group Limited | Information & communication | 1998 |
| Indigo Telecom Installation Services Limited | Professional & scientific | 2001 |
| Jaga Brothers Transport Limited | Transport & logistics | 2006 |
| Magor Auto Supplies Limited | Wholesale & retail | 2005 |
| Mogul Limited | Professional & scientific | 2008 |
| Papi Magor Ltd | Hospitality | 2026 |
| Sion Bidco Limited | Financial services | 2018 |
| Sion Midco Limited | Financial services | 2018 |
| Sion Topco Limited | Financial services | 2018 |
| Stepping Stones Magor Ltd | Education | 2025 |
| Terni Bistro Ltd | Hospitality | 2025 |
| THE Green Owners Management Company Limited | Households | 2016 |
| Trinity Quarter Community Company Limited | Households | 2021 |
| Underwood Gardens Residents Company Limited | Construction | 2026 |
| V. Gabica & Co. Limited | Water & waste | 1973 |
| Wales 1 Day Nursery Ltd | Health & social care | 2013 |